The Gunwale reference article from the English Wikipedia on 24-Apr-2004
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Gunwale

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The gunwale, pronounced "gunnel", is the top edge of the side of a boat. Originally the "Gun Wall" on a sailing ship of war. This would be the wall behind which the cannons were mounted. In modern boats, cannons are no longer standard equipment, but the designation remains.

On a canoe, the gunwale is typically the widened edge at the top of the side of the boat, where the edge is reinforced with wood, plastic or aluminum.

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